This is crap. It makes Anroid Firefox slow, unresponsive changing pages and specially when neteork changes

Seems to work on some sites such as this test page www.amp-html.co.uk/index.html
The Chrome version works so I have faith this will work, but I have not seen any sites swap to AMP mode yet.

not working

Simple not working

とても良いです。
しかし、Mobile版Firefoxは こちらの環境では正常に動きませんでした